Baby Lock Embroidery Professional PLUS BMP9 Instruction And Reference Manual page 254

APPENDIX — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Symptom
The area around the embroidery
foot hole is damaged.
Sliding surface on hook race is
not smooth. There are scratches
or burrs on it.
The bobbin or bobbin case are
not correctly installed.
The hook is not correctly
The needle
installed.
breaks.
The hook stopper is not
correctly installed, the hook is
making a complete rotation.
The upper thread is not
threaded correctly.
The upper thread is catching
somewhere.
The upper thread tension is set
too high. It does not run.
A bobbin designed specifically
for this machine is not used.
The needle and the hook are not
correctly passing each other.
There is backlash play (forward/
backward) in the needle bar
case.
The thread density of the
embroidery data is too fine.
Three or more overlapping
stitches are being sewn.
252
Probable Cause
1 Scratches or Burrs
1 Hook race area
Remedy
Replace the presser foot.
Consult your nearest Baby Lock
retailer.
Consult your nearest Baby Lock
retailer.
Remove and reinstall bobbin
and bobbin case.
Consult your nearest Baby Lock
retailer.
Consult your nearest Baby Lock
retailer.
Pull the upper thread by hand
from below the presser foot,
and check that the thread
moves smoothly. If the thread
does not move, it is not
threaded correctly. Thread the
upper thread correctly. Make
sure the thread is caught by the
needle bar thread guide.
Decrease the upper thread
tension and make sure tension
disc rotates when pulling on
thread.
Use the correct bobbin.
Hook timing may be OFF.
Consult your nearest Baby Lock
retailer.
Consult your nearest Baby Lock
retailer.
Using a data design system,
correct the thread density and
overstitching settings in the
embroidery data.
Reference Page
p.36, 37
p.55-58
p.113
p.33
p.136